Discussion
Match the method with the result it gives for voltage regulation.
1. Emf method 2. Mmf method 3. Potier method
P. The most accurate of the three Q. Optimistic, understating the regulation R. Pessimistic, overstating the regulation
Answer: B
The two simple methods err in opposite directions, which is convenient because the truth is bracketed between them. The Potier construction separates leakage reactance from armature reaction and does better than either.
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